My Burm also hates to be in water so i just don't do it. What's your substrate? If you're not doing this already try using eco earth because it absorbs waste and smells massively. When they piss and poo just change out the soiled area and the smell will be under control. I've tried paper, cypress mulch and orchid bark and they all stink to high heaven. Eco earth is the only substrate that absorbs smells in my experience.
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